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Finding the Fourth Proportional to 895,476, 1,235,779.02 and 487,600.20

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Solution

The fourth proportional to 895,476, 1,235,779.02 and 487,600.20 is: 672,900.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,476 : 1,235,779.02 = 487,600.20 : x
  2. Step 2: Convert to fraction form
    895,476/1,235,779.02 = 487,600.20/x
  3. Step 3: Cross multiply
    895,476x = 1,235,779.02 × 487,600.20
  4. Step 4: Simplify right side
    895,476x = 602,566,097,307.80
  5. Step 5: Solve for x
    x = 602,566,097,307.80/895,476
  6. Step 6: Final answer
    x = 672,900.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.